Thank you gentlemen for your responses.  It looks like I've contemplated too long.  Little did I realize there appears to have been a buying frenzy on Lee moulds and the C185-.312-1R is a back order item.  You gave me valuable information.  I guess I will start by collecting wheel weights.  I will also look into paper-patching. I can borrow several moulds and experiment and wait for sanity to come back to the market.  Has anyone used aluminum gas-checks which seem to be suddenly replacing copper?